The escalating trade war between the U.S. and China is rippling through the global economy, hurting confidence among U.S. small businesses, crimping trade among industrial giants in Asia and hitting export-oriented factories in Europe.

On Sunday the U.S. imposed fresh tariffs of 15% on Chinese goods including clothing, tools and electronics. A round of retaliatory Chinese tariffs also took effect, targeting imports of U.S. soybeans, crude oil and pharmaceuticals.